Live Wilderness Adventure

Chapter 564: Poison Killing

A rather novel combination came out of Bi Fang's mouth.

To kill black bears with poison?

[What is poisonous? ah】

【The fact that Boss Fang is an alien can't be hidden at last? 】

[One thing to say, compared to aliens, I believe that Lao Fang underwent some kind of surgery and installed poisonous glands (funny)]

[I know, being bitten by a spider turns into a four-hundred-year-old aunt! 】

[I don't ask anything else, I just want to know, where did this venom come from, I'm very curious, I want to know (dog head)]

"How could it be that I produced the venom? Of course I used it." Bi Fang choked on the barrage, and Yuyu's mood improved a lot.

Sand sculpture netizens always bring joy.

Survival in the wild with spectators is completely different from that without spectators.

At least being alone in the woods doesn't feel lonely, and it even brings a modicum of happiness.

When the wilderness survival skills reach a certain level, what people are fighting more is not the survival problem, but themselves.

Walking into the depths of the forest, Bi Fang continued: "In nature, in order to survive, various animals have evolved different survival strategies, either for predation or for self-protection, especially poisonous snakes, with their venom, Almost all can make a big difference with a small one.”

In nature, body size is almost a relationship between superiors and subordinates, but venom can allow animals to overtake and reverse this rule.

"However, the poisonous species should be the one that scares humans the most, because most of the venoms not only cause extreme pain, but we also know very little about them, so we have inexplicable fears."

All behaviors of animals and plants on the earth can be explained by: survival and reproduction.

The reason why animals and plants evolve toxicity is actually for better survival and reproduction.

"According to the second law of thermodynamics, in an isolated system, the system will gradually change from order to disorder, which is the process of entropy increase. For example: an apple falls on the ground and it will gradually rot."

"If organisms want to survive, they first need to fight against the increase in entropy, and the intake of energy can maintain the original low-entropy state, such as: eating."

"All organisms on the earth must rely on energy to survive, but different organisms use energy in different ways. Plants use solar energy, herbivores use plants, and carnivores use herbivores. Meat."

Energy will flow along the chain of solar energy-plants-herbivores-carnivores, and it is precisely because of this that such a complex biological chain has formed on the earth.

But the theory is the theory, every creature is reluctant to hand over the energy it has finally obtained to others.

"For plants, due to the restriction of the cell wall, plants cannot move freely. In addition, plants cannot fight back. They can only avoid the attacks of herbivores by evolving thorns and toxicity."

"And herbivores have more ways to avoid the attacks of carnivores. They can evolve faster running speed, sharper monocular vision, thicker skin, etc. to avoid the attacks of carnivores, but some herbivores will Evolved virulence to combat natural enemies."

"There are also some animals that evolve toxicity for hunting, such as: poisonous snakes, when hunting, they will first spray venom on the opponent, wait for the opponent to be poisoned and die, and then rush to eat the opponent."

It is precisely because animals and plants need to better avoid natural enemies and hunt better that there are so many toxic animals and plants in nature.

If the predator and the prey are regarded as the hunter and the prey, then there will always be an arms race between the hunter and the prey.

Both sides are constantly adapting to each other.

Speaking of this, Bi Fang's meaning is already obvious.

[Looking for plants or animals? 】

[Poisonous plants are hard to find, right? There is also a blood-sealed throat tree here? 】

"There are many poisonous plants in Japan, but in terms of hunting, plant toxins are often not as effective as biological toxins, just like cycads." Bi Fang explained.

Cycas is a relatively common and highly poisonous plant in southern Japan. In fact, it is not uncommon. It is the "iron tree" that many people have seen.

What many people don't know is that this plant is highly poisonous. It is the oldest existing seed plant on the earth, the famous "living fossil" plant.

Its origin can be traced back to about 300 million years ago, and it reached its peak in the Jurassic era. It once dominated the entire earth together with the dinosaurs.

"Cows eat iron tree seeds, which can cause paralysis. They are neurotoxins. Eating too much can cause death, but it is not enough to deal with black bears."

Most of the toxins are smeared, then attacked, and enter the opponent's blood.

The biggest feature is that the toxicity is strong enough, the effect is quick, and it can cause the greatest damage with the smallest amount.

Talking about the toxin without talking about the dose is playing hooligans. The cycad toxin infection caused by a few wounds is useless at all, and the effect is slow. When it works, the bear burps.

"Just like the blood-throat tree, there are only a few, but most poisonous animals can kill prey of the same size with one blow. The only useful plants that can be found here in Japan are castor plant and water hemlock. The effect is not bad, and the water hemlock is even listed as the most poisonous plant in North America, if you can find it, the best."

The toxin of water hemlock is very strong, and the whole plant contains hemlock, which can damage the central nervous system, cause seizures and eventually death of those who eat it.

Moreover, the effect of toxin is similar to that of curare, which can paralyze the motor nerves and inhibit the medulla oblongata. It has a quick effect and is listed by Bi Fang on the candidate list.

However, what he wanted to find more was the snake.

Plant toxins are used for defense, making herbivores afraid of them. Only snake venom is used for offense, and the direction of evolution is also based on Bi Fang's needs.

After all, they are all hunting, and the requirements are exactly the same.

"Japan's humid climate provides habitat for as many as 47 species of snakes, but only eight of them survive on the four islands of Hokkaido, Honshu, Shikoku and Kyushu, and there are only two venomous snakes here."

"One is the Japanese viper, and the other is the tiger-spotted neck snake. Due to the size of the black bear, we don't need toxins to kill it directly. As long as it has an obvious paralyzing effect, it is effective. I want to find it the most. Yes, the tabby-necked trough snake."

The venom of the tiger-necked slot snake is very low, with an average venom dose of 11.8 mg, and the main components of the venom are metalloproteinases such as thrombin. However, the intravenous toxicity is very strong, and the intravenous LD50 is 0.265mg/kg, which is more than most viperidae poisons.

Vipers, most people can think of highly poisonous when they hear the name, can surpass most vipers, which is evident.

However, because the tiger-spotted neck snake has venomous fangs, and whether it is a poisonous snake has sparked many discussions.

Because the fangs and the venom glands are not connected by a catheter, it is difficult to inject the venom, and the venom delivery system will be wasted when the venom is actually injected. In addition, the personality is docile, so most people are bitten by the tabby with mild symptoms, but it is relatively rare. things.

Before 2008, it was not even considered a poisonous snake in China.

Even so, there have been several fatal bites from the tiger-necked trough snake in Japan.

"But it doesn't matter. I extracted it artificially, and I won't let it be wasted. In fact, during the earthquake yesterday, many poisonous snakes came down from the mountain. At that time, I saw a guy who looked like a tiger-necked groove snake, but at that time Once you find the emerald, you don't have time to catch it."

Reptiles are very sensitive to earthquakes. At least a dozen snakes passed by Bi Fang's sight at that time, but they were all eager to escape and did not pose any threat.

"Let's go over there now to see if we can find it, and it mainly preys on small vertebrates, such as frogs and toads. It likes to inhabit places with lush aquatic plants, and it is in the same place as water hemlock. What we are looking for It's actually two things."

Bi Fang walked in the direction he remembered, and soon found a small stream in the valley, and then searched along the stream.

During the period, the tabby neck groove was not found, but two entangled belly chain snakes were found, which belonged to non-venomous snakes.

There was no waste, Bi Fang took this loving young couple together, prepared to make today's lunch, and continued to search.

Finally, Bi Fang found the target in the middle of a small clump of aquatic plants.